alert dns $HOME_NET any -> any any (msg:"ET INFO Observed DNS Query to FingerprintJS Domain (fpjscdn .net)"; dns.query; bsize:11; content:"fpjscdn.net"; nocase; classtype:misc-activity; sid:2070110; rev:1; metadata:affected_product Any, attack_target Client_and_Server, created_at 2026_06_30, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2026_06_30, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1082, mitre_technique_name System_Information_Discovery;)